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'99 318/ 5.2 pinging
#754230 November 18th 2019 9:27 am
Joined: Aug 2019
Posts: 18
stranger
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Posts: 18
Good morning all:

I recently did a tune-up on my '99; plugs, wires, cap, rotor, PVC, and air filter were all replaced.
All plugs were manually gapped to 0.040, firing order has been double-checked, cap and rotor are seated properly.

With a bit over 75K on the odometer, I think this was the first time anything has been done to the engine; the plug wires still had the wire loom on them, and the plugs were so bad I'm not sure how the van was even running at all, much less as well as it did. Air filter was almost completely clogged.

I am experiencing "pinging" under moderate to heavy acceleration.
I have been running 89 octane gas, but all I can find around here has the 10% ethanol in it, could the pinging be a result of the octane?

Are there any additives that could be added such as seafoam or Marvel Mystery Oil?


Exco


I know a little bit about a lot of things, but there are only a few things of which I know a lot.
Re: '99 318/ 5.2 pinging
Excoastie #754656 December 04th 2019 10:53 pm
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I'd check your engine timing first. It's very possible to bump a distributor and put timing off by a little bit. Which will cause pinging.

- Rich


1991 Dodge B250 Zephyr Conversion. "Bi-frost" 89,000-ish original miles and counting.
- 318TBI; has headwork and other bolt on upgrades. Runs strong and smooth!
- Powertrax locker
- 3" aluminum radiator.
- Rear air springs, rebuilt suspension, steering stabilizer.
Re: '99 318/ 5.2 pinging
Excoastie #758419 March 27th 2020 6:16 am
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You may want to move this post to the Dodge section, however in '99 all timing was controlled by the PCM. That being said it's still possible the distributor may have been moved during the van's lifetime. There is a procedure to get it back to where it's supposed to be (not with a timing light) but it escapes me.

Also the Magnum 5.2/5.9 were known to blow the gasket on the bottom of the intake plenum, this can cause an internal vacuum leak and may cause pinging as well.


Nate Breece

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